18ft 10in is the exterior fuselage width of the B787, not the cabin width.

The A350 will have an interior cabin width slightly greater than that of the A330 (by means of thinner insulation). It will still have a narrower cabin than the B787, but only by several inches, not 18 inches as the OP suggests.

Notice though, that they don't bother to point out that they are referring to the A330. General public would assume (I bet) that they mean the B787 since that is what they keep hearing it is designed to compete with.

Quoting KhenleyDIA (Reply 5):Notice though, that they don't bother to point out that they are referring to the A330. General public would assume (I bet) that they mean the B787 since that is what they keep hearing it is designed to compete with.

The general public don't give a toss, most don't even know or care what type of aircraft they are getting on. Only the folk on here pick apart and dissect every word that Airbus or Boeing

Many companies use this kind of wording. Quite often with cars they will talk about best in class dynamics or economy even when the product doesn't shine at either claim. The class might be 5 seat cars between 3.4 and 3.45 meters long. The vehicle might be the only one to meet the class criteria.

Airbus could also be comparing the A350 with the 767 and their claims are just as valid as comparing it with the A330.

Fortunately most people involved in buying an aircraft will make the purchase with a little more information than the general public will ever know about the aircraft.

Flown on A300B4/600,A319/20/21,A332/3,A343,B727,B732/3/4/5/6/7/8,B741/2/4,B752/3,B762/3,B772/3,DC10,L1011-200,VC10,MD80,

cabin width really only makes a difference if you compare it with the abreast seating configuration.

The A380 is wider than the 747, but will have 3-5-3 seating on the lower deck, and for the guy seating in the center row, let me tell you, he'll be REAL glad he is flying an aircraft that is wider than the 747...

The aircraft width don't mean sh#t to the passenger, they just care about how wide their seat is, and where it is located.

I guess it will all depend on how operators make use of the width of the A350 and 787. If they have the same abreast seating config, then I guess the 787 might boast wider seats/aisles.

I'll do my own airline. With Blackjack. And hookers. In fact, forget the airline.

It would be possible given the ambiguous cabin width for some airlines like emirates (if they choose the 787) to do a 3-3-3 just like the have done a 10 abreast on the 777. There are cabin widths that prohibit 9 abreast straight away but the 787 can be a generous 8 or a slightly tight squeeze 9 abreast. Some have done 3-3-3 on 330 so the extra 8 inches on the 787 over the 330 makes this a realistic prospect.

Quoting Hamlet69 (Reply 15):Wrong. I don't have the respective exterior dimensions, but the 787 will have a cabin 8in wider than the A330 (and thus 5in wider than the A350).

Boeing also claims that the cabin will feel even wider. This is because while the A350 and B787 are only 3-5in different at their widest point the Boeing is actually significantly wider at the shoulder and eye-ball level. I seem to remember something on the order of 15-17in. My biggest complain with the A330/340 is how quickly the sidewalls curve inward. They do this to such a degree that by eye-ball level they are narrower than the seats. This is definitely not a problem with the 767 or 777.

The Airbus narrowbodies also have this problem, though not to the same degree, that and they are significantly wider the the 737s at their widest point.

Quoting A342 (Reply 9):The 787 fuselage is 10cm(4in) wider than the A330ï¿½s one, no idea about the additional cabin width.
Airbus claims a 7.6cm(3in) wider cabin for the A350 compared to the A330.

You see, the difference will hardly be noticeable.

The B787's composite fuselage allows for about 4 inches of additional cabin width for a given fuselage diameter. So, the B787's cabin width advantage over the A350 should be about the same (5 inches) as the A320's cabin width advantage over the B737. Noticable, but not dramatic.

Quoting Zvezda (Reply 20):The B787's composite fuselage allows for about 4 inches of additional cabin width for a given fuselage diameter. So, the B787's cabin width advantage over the A350 should be about the same (5 inches) as the A320's cabin width advantage over the B737. Noticable, but not dramatic.

Well if it means one-inch(plus) wider seats, like the Airbus narrowbody's cabin offers over the 737, it may be both.

I for one am powerfully thankful for that extra inch when I am on a UA Airbus vs. a UA 737.

However, Airbus max diam is at floor level, while 787 max diam is actually at shoulder level.

Thus at shoulder level the 787 will have an even greatyer advantage.

I have not seen the figures but I have been told that the Airbus diam at floor level is greater than the 787.

Since we don't sit on the floor, I would expect the 787 to be noticeably more comfortable for the passengers. The 787 at 9 abreast will have seats which are 1/2" wider at the cushion level. It will have more "headroom" also.

(If any of you nare concerned about inward sloping walls, take a look at the 380 upper level).

Quoting Cloudyapple (Reply 21):Because it's round... :O boeing planes have been ovoids all the way until the 787. Ovoids are aerodynamically less efficient than a round cross/section (slightly) and heavier structurally.

Hmm, may you meant until the 777, which was the first circular cross section from Boeing. The 787 is non circular, and as a result the walls curve at a slower rate as one goes up from floor level.

Quoting Phollingsworth (Reply 19):I seem to remember something on the order of 15-17in. My biggest complain with the A330/340 is how quickly the sidewalls curve inward. They do this to such a degree that by eye-ball level they are narrower than the seats. This is definitely not a problem with the 767 or 777.

The Airbus narrowbodies also have this problem, though not to the same degree, that and they are significantly wider the the 737s at their widest point.

bingo. but the reason isn't exactly as stated next...

Quoting Cloudyapple (Reply 21):Because it's round... :O boeing planes have been ovoids all the way until the 78

To increase cargo area, the Airbus locates the floors in their planes higher up in relation to Boeing. Notice on airbus planes the window locations, the lack of crown space, etc., etc. How do you think A fits all those containers in the belly of the 300 series fuselage?

This placement is a negative for overhead bins, shoulder room at the windows, and even headroom. It's one reason you can see the huge difference in the 777 vs. 340 diagrams Boeing always offers.

B has made a positive out of the "negative" space in the 747/777 and now 787 crowns by offering various rests and and storage spaces up there, as have third party fittings companies. It's effectively 2.5 floors. On the Airbus planes, they've had to eat into the cargo space for crewrests, extra bathrooms, what have you, which kind of negates the whole reason for the floor position in the first place, but only on longhaul planes, so overall, the design is more efficient with space on the Airbus.

Quoting Ruscoe (Reply 24):(If any of you nare concerned about inward sloping walls, take a look at the 380 upper level).

This is floorspace that gets wasted in economy configuration but in premium classes it is useful as sleeping space. Smart airlines will make the main deck of the A380 all economy and come up with some clever sleeping bed design for the the F/C cabins upstairs.

Quoting Zvezda (Reply 26):I believe the seats on UA's A320s are 1/2 an inch wider than those on UA's B737s and the aisle is also wider. 1/2 an inch might not sound like much, but people do notice.

UA's stated seat-width (and my own measurements) show their A320 and A319 equipment having 18" wide seats (same as their 767/777) in Y with an aisle similar to the 737.

You can go with a six inch wider aisle (to make it easier for people to pass during drink/meal service) or inch wider seats, and fortunately UA chose the latter (as I believe most A31x/A32x operators do).

Quoting Slarty (Reply 36):I thought the A380 will have a vastly superior upper deck compared to the 747, in terms of width and side curve.

Yes, the WhaleJet's upperdeck is much more spacious and much closer in feeling to a normal widebody than that of the JumboJet. For overnight flights, I like the coziness of the JumboJet's upperdeck, but I'm not fond of it for daytime flights. I've so far only been in a mockup (at FRA) of the WhaleJet and I'm sure the real plane will feel a little different. Anyway, I'm looking forward to flying the WhaleJet. I'm sure it will remind me of the myth of Noah. At least the flight won't be three days.

Quoting KhenleyDIA (Reply 5):Notice though, that they don't bother to point out that they are referring to the A330. General public would assume (I bet) that they mean the B787 since that is what they keep hearing it is designed to compete with.

The general public would not give a crap what model or make of plane they are flying on, nor would they ever look at the airbus website. The majority of the general public would not even be able to tell the difference between an airbus and a boeing.

Quoting DAYflyer (Reply 42):As are ALL of the statements regarding the A-350 lately. While I am sure it is a fine aircraft, or will be a fine aircraft when in production, all of the marketing BS by Leahy is getting a little old.

And Boeing is a certified BS-free zone?

Time flies like an arrow. Fruit flies like a banana!There are 10 types of people in the World - those that understand binary and those that don't.

Of course not. Boeing produce their share of BS. The embarrassing thing about Airbus is that they produce more than their share of BS. Does that make Boeing innocent? No. Boeing only appear innocent when compared with Airbus. It's an illusion.

Quoting Francoflier (Reply 12):cabin width really only makes a difference if you compare it with the abreast seating configuration.

The A380 is wider than the 747, but will have 3-5-3 seating on the lower deck, and for the guy seating in the center row, let me tell you, he'll be REAL glad he is flying an aircraft that is wider than the 747...

Your wrong my friend. The regular seat config in the 380 lower deck will be 3-4-3, just like on the 747's.
So yes, the seats/aisles will be wider. (not bashing the 747 here, just correcting a fact).

Also, the 787 in 2-4-2 will be wider than the 350 in 2-4-2.

As for how noticeable?? Don't know... we'il just have to wais and see...

But as posted above, a 5 inch diference on a single aisle 737/320 (3-3 config +1.81 cm per seat/aisle(6 seats+1 aisle)) is much more noticiable than on a wide body 787/350(2-4-2 config +1.27 per seat/aisle(8 seats+2aisles)).

Quoting A342 (Reply 47):Well, I don´t. I´ve flown them both and couldn´t notice the difference in cabin or seat width.

Neither do I... and I don't see people in this forum constantly refering to that!
But it would probably be diferent if it was the B320 and A737.... If that was the case, we would probably have at least a weakly topic about how much more confortable the B320 was.

Quoting Aither (Reply 45):787 % of economics they never tell to which a/c they compare

- they do tell.

The biggest BS on both sides was, with no close contender, "a Chinese copy - all we need to do is to put those engines on 330 - OK, we'll slightly modify 330 - oops, we'll build a new plane". All the other things are merely annoying (like B cry about IB not ordering 777) or ridiculous (like A claiming 330/340 has more headroom than 777)...